Question

Which shows all the prime factors for 84?

A.
2 • 2 • 2 • 3 • 7

B.
2 • 2 • 3 • 7

C.
4 • 21

D.
2 • 42

Answer 1

B ) 2x2x3x7, Which can also be written as (2^2) x 3 x 7.
Its B

Answer 2

your answer will be B) 2 x 2 x 3 x 7

they are all prime numbers as they cannot be simplified anymore, and they add up to 84.

hope this helps